CN113349885B - Endoscopic surgery forceps with suction function - Google Patents

Abstract

The invention discloses an endoscopic surgical forceps with a suction function, which comprises: handle seat, suction tube, tong pole, binding clip and push rod. The handle seat is provided with a movable handle; the suction tube is fixed on the handle seat and the tail end of the suction tube is exposed; the forceps rod is tubular, the forceps rod is sleeved outside the suction tube, and the tail end of the forceps rod is arranged on the handle seat; the clamp head comprises a first clamp head and a second clamp head which are hinged at the head end of the clamp rod, and when the first clamp head and the second clamp head rotate to be closed, a suction hole communicated with the suction tube is formed between the first clamp head and the second clamp head; the push rod is sleeved between the forceps rod and the suction tube, the movable handle is connected with the push rod to drive the push rod to axially move, and the first chuck and the second chuck are respectively connected with the push rod through the transmission mechanism to drive the first chuck and the second chuck to simultaneously open and close when the push rod axially moves. The invention has the functions of clamping tissues and attracting, and is convenient for attracting smoke at a specific position.

Description

A laparoscopic surgical forceps with suction function

technical field

The invention relates to a surgical forceps, in particular to a laparoscopic surgical forceps with suction function.

Background technique

Laparoscopic surgery is currently widely used, covering almost all surgical areas. During laparoscopic surgery, due to the limited access to instruments, clamping tissue (or called biopsy forceps), separation, tissue cutting, hemostasis, flushing, and suction all need to be carried out from different channels. The existing endoscopic channels only have limited access. One or two channels, it is not easy to increase the channel for surgery; generally, surgery is performed by constantly replacing surgical instruments, which greatly increases the difficulty and time of surgery, especially in emergencies such as bleeding, which may lead to serious consequences .

In order to solve this problem, the invention patent with application number 201410040683.3 discloses a multifunctional instrument for endoscopic surgery. It is used to absorb the smoke generated by the operation, and it has two functions of endoscopic surgical forceps and suction tube at the same time. However, such surgical instruments also have the following problems: the distance between the small hole on the pull rod and the front end of the forceps head is relatively long, and due to the limitation of the forceps head, it is difficult to suck the smoke at a specific position, and the small holes for suction are scattered, Less attractive.

Contents of the invention

In view of this, the object of the present invention is to provide a laparoscopic surgical forceps which has a suction function and is convenient for sucking smoke from a specific position.

The technical scheme that the present invention adopts for solving its technical problem is:

A laparoscopic surgical forceps with suction function, comprising:

A handle seat, the handle seat is provided with a movable handle;

a suction tube fixed to the handle base and the end of the suction tube extends out of the handle base;

A clamp rod, the clamp rod is hollow tubular, the clamp rod is sleeved outside the suction tube and the end of the clamp rod is installed on the handle seat;

The jaw includes a first jaw and a second jaw hinged at the head end of the pliers rod, the side of the first jaw facing the second jaw and/or the side of the second jaw facing the first jaw One side of the suction pipe is provided with an air guide groove. When the first chuck and the second chuck are rotated and closed, the first chuck and the second chuck are in contact with the end surface of the suction tube, and the second chuck The air guide groove between the first clamp and the second clamp forms a suction hole connected with the suction tube;

Push rod, the push rod is hollow tubular and sleeved between the forceps rod and the suction tube, the movable handle is connected with the push rod so that the movable handle can drive the The push rod moves axially, and the first chuck and the second chuck are respectively connected with the push rod through a transmission mechanism so that the push rod can drive the first chuck and the second chuck when the push rod moves axially Open and close at the same time.

Preferably, soft rubber pads are provided between the first clamp and the end surface of the suction tube, and between the second clamp and the end surface of the suction tube.

Preferably, the transmission mechanism between the first chuck and the push rod is a first transmission mechanism, and the first transmission mechanism includes a first gear arranged on the first chuck, and a gear set at intervals between Several teeth at the first end of the outer wall of the push rod and meshed with the first gear.

Preferably, the transmission mechanism between the second chuck and the push rod is a second transmission mechanism, and the second transmission mechanism includes a second gear arranged on the second chuck, and a second gear arranged at intervals between A plurality of teeth at the first end of the outer wall of the push rod and meshed with the second gear.

Preferably, the movable handle is hinged to the handle base, and the outer wall of the movable handle is provided with several handle teeth distributed around the circumference of its axis at intervals, and the outer wall of the push rod is provided with The handle teeth engage several terminal teeth.

Preferably, the pliers rod is rotatably connected with the handle base so that the pliers rod and the pliers head can rotate around the axis of the pliers rod, and a An anti-rotation structure that can limit the relative rotation of the two.

Preferably, the anti-rotation structure includes a limiting platform provided on the push rod, and the teeth at the first end meshed with the first gear are arranged on the limiting platform.

Preferably, the tong rod is fixedly provided with a screw seat capable of driving it to rotate relative to the handle seat.

Preferably, a fixed handle is further provided on the handle base, and a loop for people's fingers to penetrate is provided on both the fixed handle and the movable handle.

Preferably, the handle base is provided with electrodes electrically connected to the pliers head.

Preferably, a damping device capable of restricting the opening of the first clamp and the second clamp is provided between the first clamp and the second clamp.

Preferably, both the first chuck and the second chuck are provided with air guide grooves, and the first chuck is provided with a first lateral through hole communicating with the air guide groove on the first chuck, and the second chuck A second lateral through hole communicating with the air guide groove on the top is provided.

The beneficial effect of the present invention is: when using the surgical forceps of the present invention, the push rod can be driven to move axially through the movable handle, and the first chuck and the second chuck can be driven to open and close at the same time, so that the forceps can be opened and closed at the same time. Switch between states, and then realize the function of clamping tissue. During the operation, the end of the suction tube is connected to the pipeline of the vacuum suction bottle to realize the suction function. When the first chuck and the second chuck are opened, the first end of the suction tube is exposed, and the first port of the suction tube acts as the suction inlet; When it is necessary to suck the smoke at a specific position, the movable handle can be used to drive the first clamp and the second clamp to close together. At this time, the suction hole formed between the first clamp and the second clamp acts as a suction inlet, so that The chuck is close to the target position, and the suction inlet is aligned with the target position, so that a strong suction force can be generated at the target position, and the smoke at the target position can be quickly sucked away.

Description of drawings

Fig. 1 is a sectional view of the present invention when the pliers head is in an open state;

Fig. 2 is a perspective view of the front end of the present invention when the pliers are in an open state;

Fig. 3 is a cross-sectional view of the front end of the present invention when the pliers head is in an open state;

Fig. 4 is a cross-sectional view of the front end of the present invention when the pliers are in a closed state;

Fig. 5 is a large-scale distribution diagram of part A in Fig. 1;

Fig. 6 is a perspective view of the first scheme of the push rod;

Fig. 7 is a perspective view of the second solution of the push rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative relationship between the components in a certain posture (as shown in the accompanying drawings). When the positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly. In addition, descriptions involving "preferred", "secondary preferred" and the like in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "preferred" and "less preferred" may explicitly or implicitly include at least one of these features.

Referring to FIG. 1 to FIG. 7 , an embodiment of the present invention proposes an endoscopic surgical forceps with suction function, including: a handle base 1 , a suction tube 2 , a forceps rod 3 , a forceps head, and a push rod 5 . The handle base 1 is provided with a movable handle 11; the suction tube 2 is fixed on the handle base 1 and the end of the suction tube 2 extends outside the handle base 1; And the end of pincer bar 3 is installed on handle base 1; Pincer head comprises the first chuck 41 and the second chuck 42 that are hinged on the first end of pincer bar 3, the side of first chuck 41 towards the second chuck 42 and /or the side of the second clamp 42 facing the first clamp 41 is provided with an air guide groove 402, when the first clamp 41 and the second clamp 42 are rotated together, the first clamp 41, the second clamp 42 All abut against the end face of the suction tube 2, and the air guide groove 402 between the first chuck 41 and the second chuck 42 forms a suction hole 43 that runs through the jaw and communicates with the suction tube 2; the push rod 5 is Hollow tubular and sleeved between the forceps rod 3 and the suction tube 2, the movable handle 11 is connected with the push rod 5 so that the movable handle 11 can drive the push rod 5 to move axially, the first chuck 41 and the second chuck 42 are respectively connected with the push rod 5 through a transmission mechanism so that the push rod 5 can drive the first chuck 41 and the second chuck 42 to open and close at the same time when the push rod 5 moves axially.

The movable handle 11 can be designed to move back and forth along the axial direction of the pliers rod 3 , and can also be set to be rotatable relative to the handle base 1 .

When using the surgical forceps of the present invention, the push rod 5 is driven to move axially through the movable handle 11, and the first chuck 41 and the second chuck 42 can be driven to open and close at the same time, so that the jaws are between the two states of opening and closing. Switch, and then realize the function of clamping tissue. During the operation, the end of the suction tube 2 is connected to the pipeline of the vacuum suction bottle to realize the suction function. When the first clamp 41 and the second clamp 42 are opened, the head end of the suction tube 2 is exposed, and the first port of the suction tube 2 is exposed. Serve as an inlet for suction; when it is necessary to suck the smoke at a specific location, the first chuck 41 and the second chuck 42 can be driven to close through the movable handle 11. At this time, the first chuck 41 and the second chuck 42 The suction hole 43 between them acts as a suction inlet, so that the chuck is close to the target position, and the suction inlet is aligned with the target position, so that a strong suction force can be generated at the target position, and the smoke at the target position can be quickly sucked away.

Further, soft rubber pads 9 are provided between the first chuck 41 and the end surface of the suction tube 2 , and between the second clamp 42 and the end surface of the suction tube 2 . Both the first clamp 41 and the second clamp 42 are provided with a plane for pressing the suction tube 2 , and the soft rubber pad 9 is fixedly arranged on the plane of the first clamp 41 and the second clamp 42 . When the first chuck 41 and the second chuck 42 are closed, the soft rubber pad 9 can not only play the role of cushioning, but also play the role of sealing to enhance the suction force.

For the sake of distinction, we define the transmission mechanism between the first chuck 41 and the push rod 5 as the first transmission mechanism, and the transmission mechanism between the second chuck 42 and the push rod 5 as the second transmission mechanism.

In a preferred solution of the present invention, the first transmission mechanism includes a first gear 411 arranged on the first chuck 41, and several head ends arranged at intervals on the outer wall of the push rod 5 and meshed with the first gear 411 Teeth 51. The transmission mechanism between the second chuck 42 and the push rod 5 is a second transmission mechanism, and the second transmission mechanism includes a second gear 421 arranged on the second chuck 42, and a gear 421 which is arranged on the outer wall of the push rod 5 at intervals and is connected to the outer wall of the push rod 5. The first teeth 51 of the second gear 421 mesh.

FIG. 6 and FIG. 7 disclose two design schemes of the teeth 51 at the first end. One, the teeth 51 at the head end have annular teeth arranged along the circumferential direction of the push rod 5, at this time, the teeth 51 at the head end meshed with the first gear 411 and the second gear 421 are the same; two, the teeth of the push rod 5 The upper and lower sides are respectively provided with head-end teeth 51 , and the first gear 411 and the second gear 421 mesh with two groups of head-end teeth 51 respectively.

In a preferred solution of the present invention, the movable handle 11 is hinged with the handle seat 1, and the outer wall of the movable handle 11 is provided with several handle teeth 111 distributed around the circumference of its axis at intervals, and the outer wall of the push rod 5 is provided with A number of terminal teeth 52 mesh with handle teeth 111 . When the movable handle 11 is rotated, the handle teeth 111 push the end teeth 52, and then drive the push rod 5 to move forward and backward along the axial direction.

In some solutions of the present invention, the movable handle 11 and the push rod 5 can also adopt the following connection structure, such as: the movable handle 11 is hinged with the handle seat 1, and the movable handle 11 is connected to the push rod 5 through two connecting rods, A crank-slider mechanism is formed between the two; for another example, the movable handle 11 is set to move forward and backward, and the movable handle 11 is fixedly connected to the push rod 5 through a connecting piece.

In one solution of the present invention, the pliers rod 3 is fixedly connected to the handle base 1, and neither the pliers rod 3 nor the pliers head can rotate.

In another solution of the present invention, a rotating sleeve 7 is fixedly arranged on the handle base 1, and the end of the pliers rod 3 is rotatably mounted on the rotating sleeve 7. Through such a structure, the pliers rod 3 is rotationally connected with the handle base 1 and the pliers The rod 3 and the pliers head can rotate around the axis of the pliers rod 3 . By rotating the clamp lever 3, the clamping direction of the clamp head can be adjusted.

In order to facilitate the rotation of the pliers rod 3 and the pliers head, the pliers rod 3 is fixedly provided with a screw seat 6 capable of driving it to rotate relative to the handle base 1 .

Further, an anti-rotation structure capable of restricting the relative rotation of the two is provided between the pliers rod 3 and the push rod 5 . When the head end of the push rod 5 adopts the structure shown in Figure 7, a set of head end teeth 51 are respectively arranged on the upper and lower sides of the push rod 5, and the first gear 411 and the second gear 421 are connected with the two groups of head end teeth respectively. 51 engagement. The arrangement of the anti-rotation structure can prevent the relative rotation of the pliers rod 3 and the push rod 5 to make the first gear 411 and the second gear 421 separate from the corresponding teeth 51 at the first end.

As a preferred solution of the anti-rotation structure, the anti-rotation structure includes a limiting platform 53 arranged on the push rod 5 , and the teeth 51 at the first end meshing with the first gear 411 are arranged on the limiting platform 53 . These head teeth 51 are arranged on the limiting platform 53 , when the first gear 411 meshes with the head teeth 51 , it can limit the rotation of the push rod 5 around its axis relative to the pliers rod 3 . In this solution, in order to facilitate processing, a symmetrical platform structure may be provided on the other side of the push rod 5 , and teeth at the first end meshed with the second gear 421 may be provided on the platform. When the pliers rod 3 is rotated, the push rod 5 also rotates relative to the movable handle 11 , therefore, the terminal teeth 52 can be set as annular teeth arranged along the circumferential direction of the push rod 5 .

As another solution of the anti-rotation structure, the inner hole of the pincer rod 3 can also be set to 4 square holes, 6 square holes, 8 square holes, etc., and the push rod 5 is set to a corresponding prismatic tubular shape to limit the rotation of the push rod. 5 rotates relative to the pincer rod 3.

In order to facilitate manual operation of the movable handle 11 , a fixed handle 12 is also provided on the handle base 1 , and both the fixed handle 12 and the movable handle 11 are provided with a collar 101 for people's fingers to penetrate.

Further, the handle base 1 is provided with an electrode 8 electrically connected to the pliers head. The pliers and the electrode 8 can adopt the following electrification scheme: the push rod 5, the first chuck 41 and the second chuck 42 of the pliers are all made of conductive materials, and the electrode 8 and the push rod 5 are connected by wires. Electric shock to the tissue while clamping the tissue can effectively stop the bleeding.

Further, a damping device capable of restricting the opening of the first clip 41 and the second clip 42 is provided between the first clip 41 and the second clip 42 when they are closed.

Preferably, the damping device includes a magnet (not shown) disposed on the first chuck 41 and a magnetic attraction (not shown) disposed on the second chuck 42 and capable of being attracted by the magnet. The magnetic attraction part can be an iron block that can be attracted by a magnet, or a magnetic part that is magnetically opposite to the magnet. Under the action of the magnetic force between the magnet and the magnetic member, it is convenient to keep the first clip 41 and the second clip 42 in a closed state, thereby maintaining a relatively large attraction force to attract smoke.

Further, the first chuck 41 and the second chuck 42) are provided with air guide grooves, and the first chuck 41 is provided with a first lateral through hole 412 leading to the air guide groove 402 on it, and the second The chuck 42 is provided with a second lateral through hole 422 communicating with the air guiding groove 402 thereon. When the first chuck 41 and the second chuck are closed, the first lateral through hole 412 and the second lateral through hole 422 serve as auxiliary air inlets of the suction hole 43, and when the entrance of the suction hole 43 is pushed against the tissue, it can Avoid the suction hole 43 from being blocked.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other All relevant technical fields are included in the patent protection scope of the present invention.

Claims (4)

1. A laparoscopic surgical forceps with suction function, characterized in that, comprising: A handle seat (1), the handle seat (1) is provided with a movable handle (11); The suction tube (2) is fixed on the handle base (1) and the end of the suction tube (2) extends beyond the end of the handle base (1); A pincer rod (3), the pincer rod (3) is hollow tubular, the described pincer rod (3) is sleeved outside the suction tube (2) and the end of the pincer rod (3) is installed on the The handle seat (1); The pincer head includes a first chuck (41) and a second chuck (42) hinged at the head end of the pliers rod (3), the first chuck (41) towards the second chuck (42) One side and/or the side of the second chuck (42) facing the first chuck (41) is provided with an air guide groove (402), and the first chuck (41) and the second chuck (42) ) when turning and closing, the first chuck (41) and the second chuck (42) all abut against the end face of the suction tube (2), and the first chuck (41) and the second chuck The air guide groove (402) between (42) forms the suction hole (43) leading to the suction pipe (2); Push rod (5), described push rod (5) is hollow tubular and is sheathed between described pincer rod (3) and suction tube (2), described movable handle (11) and described The push rod (5) is connected so that when the movable handle (11) moves, the push rod (5) can be driven to move axially, and the first chuck (41) and the second chuck (42) respectively pass through The transmission mechanism is connected with the push rod (5) so that when the push rod (5) moves axially, it can drive the first chuck (41) and the second chuck (42) to open and close simultaneously; The transmission mechanism between the first chuck (41) and the push rod (5) is a first transmission mechanism, and the first transmission mechanism includes a first gear arranged on the first chuck (41) (411), and several first teeth (51) arranged on the outer wall of the push rod (5) at intervals and meshed with the first gear (411); The transmission mechanism between the second chuck (42) and the push rod (5) is a second transmission mechanism, and the second transmission mechanism includes a second gear arranged on the second chuck (42) (421), and a plurality of first-end teeth (51) arranged at intervals on the outer wall of the push rod (5) and meshed with the second gear (421); A soft rubber pad ( 9); Described pliers rod (3) is rotatably connected with described handle base (1) so that described pliers rod (3) and pliers head can rotate around the axis of pliers rod (3), and described pliers rod ( 3) An anti-rotation structure capable of limiting the relative rotation of the two is provided between the push rod (5); The anti-rotation structure includes a limiting platform (53) arranged on the push rod (5), and the teeth (51) at the first end meshed with the first gear (411) are arranged on the limiting platform (53). platform(53); A damping device capable of restricting the opening of the two when they are closed is arranged between the first clamp (41) and the second clamp (42); The damping device includes a magnet arranged on the first chuck (41) and a magnetic attraction member arranged on the second chuck (42) and capable of being attracted by the magnet; The handle seat (1) is fixedly provided with a rotating sleeve (7), and the end of the pincer rod (3) is rotatably mounted on the rotating sleeve (7). ) rotating screw seat (6). 2. A kind of endoscopic surgical forceps with suction function according to claim 1, characterized in that, the movable handle (11) is hinged with the handle seat (1), and the movable handle (11) The outer wall is provided with several handle teeth (111) distributed around the circumference of its axis at intervals, and the outer wall of the push rod (5) is provided with several terminal teeth ( 52). 3. The endoscopic surgical forceps with suction function according to claim 1, characterized in that, said handle base (1) is provided with an electrode (8) conductively connected to said forceps head. 4. A kind of endoscopic surgical forceps with suction function according to claim 1, is characterized in that, air guide grooves are all arranged on the first clamp (41) and the second clamp (42), the first clamp The head (41) is provided with a first lateral through hole (412) communicating with the air guide groove (402) thereon, and the second chuck (42) is provided with the air guide groove (402) thereon The conductive second lateral via (422).

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